20710095391 has 2 divisors, whose sum is σ = 20710095392. Its totient is φ = 20710095390.

The previous prime is 20710095379. The next prime is 20710095449. The reversal of 20710095391 is 19359001702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20710095391 - 2¹⁵ = 20710062623 is a prime.

It is a super-2 number, since 2×20710095391² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20710095391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20710095191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10355047695 + 10355047696.

It is an arithmetic number, because the mean of its divisors is an integer number (10355047696).

Almost surely, 2^20710095391 is an apocalyptic number.

20710095391 is a deficient number, since it is larger than the sum of its proper divisors (1).

20710095391 is an equidigital number, since it uses as much as digits as its factorization.

20710095391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 37.

The spelling of 20710095391 in words is "twenty billion, seven hundred ten million, ninety-five thousand, three hundred ninety-one".